Had the same. Guest user (or new user) could log in successfully, so had to do with something inside the users home dir. Only renamed ~/.config/dconf/user file, after which the login worked again. (but user configuration was back to defaults)
Had the same. dconf/user file, after which the login worked again. (but user configuration was back to defaults)
Guest user (or new user) could log in successfully, so had to do with something inside the users home dir.
Only renamed ~/.config/